Reappraisal of possible etiologic factors in multiple sclerosis.
D000367:Age Factors; D002980:Climate; D003710:Demography; D004644:Emotions; D004777:Environment; D005260:Female; D006801:Humans; D007557:Israel; D009103:Multiple Sclerosis / Q000453:epidemiology / Q000209:etiology*; D011247:Pregnancy; D012499:Sanitation; D012737:Sex Factors; D012959:Socioeconomic Factors